Pipe-coil construction.



L. O. SCHNEIDER.

PIPE COIL CONSTRUCTION.

APPLIQATION FILED MAR. 16. 1911.

1,012,284. Patented Dec. 19, 1911. gm

LEOPOLD C. SCHNEIDER, OF PHILADELPHIA, PENNSYLVANIA.

PIPE-COIL CONSTRUCTION.

Specification of Letters Patent.

Application filed March 16, 1911.

Patented Dec. 19, 1911.

Serial 1%. 614,868.

coils such as used in coolers, condensers, or

in any other relation.

My invention relates to return connections, of the nature above referred to, in which the pipes themselves are blank, that is, unthreaded, and in which threaded fittings or parts are avoided, thus greatly strengthening the parts and giving them longer life, especially when used in connection with corroding or chemically active material, also cheapening the construction, and rendering the assembly and disassembly easier.

My invention resides in the features hereinafter described and claimed.

For an illustration of some of the forms my invention may take, reference is to be had to the accompanying drawing, in which:

Figure 1 is a side e evational view of a ipe stack or coil involving single pipes.

i 2 is an end elevational view of the same, 100 ing from the center toward the left in Fig. 1, the pipes themselves being shown in section and the return connections omitted. Fig. 3' is a longitudinal cross sectional View through a return connection, such as shown in Fig. 1. Fig. 4 is a top plan view of the apparatus shown in Fig. 3, the support being shown in section. Fi 5 is a side elevational view, partly in section, showing return connections for double pipe construction.

In F i 's. 1 and 2, the single pipes forming the stack or coil are shown at 1. These are supported by the members 2 and 3, here shown as angle irons between which the pipes 1 are clamped by bolts 4, the pipes 1 resting also upon these bolts if desired.

, .As seen in Fig. 2, the right-hand member- 2 is continuous, while the member 3 does not extend to the same hei ht. The sectional members 5 are employe in order that any is shown.

particular pipes may be readily accessible. By removing any one of these sections, 3 or 5, any desired pipe is readily accessible for removal or other purpose.

Between the bottoms of the members 2 and 3 is held by a bolt 6 a rojection or shoulder 7, through which the olt 6 passes; this projection or shoulder 7 is u on the plate or member 8 which is secured y bolts 9 to the floor or other base 10. The ends of two neighboring pipes 1 communicate with the interior of a bend 11, as best seen in Fig. 3. Each end of the bond 11 is chambered out and receives packing material 12 and a ring member 13, one s1de or end of the ring 13 resting against the supports 2 and 5, and the other end engaging the packing 12. The ring 13 may be loose upon the pipe, or may be secured thereon, as by shrinking the ring upon the pipe. The pipes I extend beyond the packing 12 into the bends 11, and are blank or unthreaded. Across the top of the bend 11 extend stirrups or bolts 14 supported in place by lugs or ears 15 and pass through the supports 2, 3 or 5, and are drawn up by nuts on the rear sides of these supports. By drawing up these bolts or stirrups 14 the packing 12 18 compressed snugly between the bend 11, the ring 13 and the exterior of the pipe 1, forming a liquid or gas-tight joint. By this construction, the pipes 1 need not be threaded, but are used blank, no threaded or expensive fittings are required, and bybacking the packing ring, as 13, against the support and drawing the bends snugly toward the supports against the packing, a cheap, perfectly satisfactory joint is produced, which is readily accessible, readily assembled, and readily taken apart.

I In Fig. 5, a double pipe return connection Here, the external pipes 16 are supportedor held by the supports 2, 3, or 5, in manner similar to that illustrated in prior figures. Within each exterior pipe 16 is disposed an interior pipe 17. The annular space etween the interior and exterior pipes serves for the passage of any desired medium which flows from such annular space between one pair of pipes to the annular space between a neighboring pair of pipes, through the connection member 18 having the interior passage 19 for this purpose. Surrounding each exterior pipe 16 is a ring 20, similar to ring 13 of Fig. 3. The ring 13 may be loose upon the pipe 16, or may be shrunk or otherwise secured thereon. In the end of the connection member 18 is a recess of diameter larger than the diameter of the external pipe, and between this recess and the passage 19 is an aperture of substantially the same diameter as the external pipe 16 receiving said pipe 16. The ring 20 engages in the recess and beyond the ring 20 within the recess is packing material 12. In the outer end of the connection member 18 there are two recesses, of larger diameter than the external diameter of the-internal pipe 17 and between that recess and the cavlty 19 is an aperture of substantially the external diameter of the internal-pipe 17, such internal pipe 17 extending through this aperture and more or less into the bend 21. Within each recess there are portions of packing 22 and 23 3 separated by a porous washer 24:, which may be made of .wire gauze or any other suitable material. -And around the edge of the porous washer 24 may be disposed one ably two for each pair of external and 1nor more holes 25 through the wall of the connection member 18 communicating with the external atmosphere. Bolts 26, preferternal pipes, extend through the supporting members 2, 3 or 5, and also through ears 27 upon the connection member 18 and also through ears 28, upon the bends "21. By tightening up on the nuts 29, the connection member 18 is drawn toward the supports 2,

3 or 5, thereby 'compressing the packings 12 against the rings 20, the latter abutting against the supports 2, 3 or 5. -This compression of the packing makes a tight joint between the external pipe 16 and the connection member 18. By drawin up on the nuts 30, on the bolts 26, the end 21 is drawn toward the'connection member 18 and the .support, compressing the packings 22 and 23 securely within the outer'recesses inmay escape through the porous washer 24 and thence through the opening or openings 25 and be detected by its odor or by any other means of detection. Here, again, it is obvious that return connections for double pipe arrangements are provided which employ only blank or unthreaded pipes, and

pipes together, said unthreaded parts, which are easily assembled, cheaply made, easily accessible, and easily taken apart.

It is to be understood, of course, that the double pipe arrangements of Fig. 5 may be supported on supports similar to those shown in connection with Figs. 1 and 2, or may be supported in any other suitable relation. When supported as shown in Figs. 1 and 2, the double pipe arrangements-may have the external pipes 16 clamped between the supporting members and may rest upon .the clamping bolts 4..

What I claim is:

1. In apparatus of the character described, the combination with a pipe, of a support therefor, a connection member into which said pipe extends, said connection member having a recess surrounding said pipe, a packing ring engaging in said recess and abutting against said support, and means for clamping said connection member to said support.

2. In apparatus of the character described, the combination witha pair of neighboring pipes, of a support therefor, a connection member for connecting the interiors of said pipes together, said pipes extending-into said connection member, said connection member having a recess around each of said pipes, packing rings abutting against said support and engagmg in said recesses, and means for clampingjsaid connectingmemher to said support.-

3. In apparatus of the character described, the combination with a pair of neighboring pipes, of a support therefor, a connection member for connecting. the interiors of said ipes extending into said connection mem r, said connection member having a recess around each of said pipes, packing rings abutting against said support and engaging insaid recesses, means for clamping said connection member 'to said support, said support comprising members disposed on opposite sides of said pipes, and means for clamping said members against said pipes.

4. In apparatus of the character described, the combination with a pipe, of a sup ort therefor, a ..connection member into w ich said pipe extends, said connection member having a recess surrounding said pipe, a packing ring engaging in said recess and abutting against said support, means for clamping said connection member to said support, said support comprisin members disposed on opposite sides of sai pipe, and means for clamping said members against said pipes.

5. In apparatus of the character described, a plurality of pi es disposed side by side, a supporting mem er on one sideof all said no I pipes, sectional members on the opposite side of said pipes, and means for clamping said sectional members and said supporting meniber against said pipes.

6. In apparatus of the character described,

the combination with a supporting member,

of a pair of pipes supported thereby, a corn nection member for connecting the interiors of said pipes, means for forming a joint be tween each of said pipes and said connection member, and means for holding said connection member to said supporting member.

7. In apparatus of the character described, an external pipe, an internal pipe within the same, a connection member forming a connection with the interior of the external pipe, a second connection member forming a connection with the interior of said internal pipe, means for forming a joint between said external pipe and said first mentioned connection member, means for forming a joint between said internal pipe and said second connection member, a support for said pipes, and means for drawing said connection members toward said support for tightening said joints.

8. In apparatus of the character described, the combination with a supporting member, of an external pipe, an internal pipe within the same, a connection member forming a communication with the "interior of said in- 'ternal pipe, a packing ring abutting against said supporting member and engaging in a recess in said connection member, means for drawing said connection member toward said supporting member to tighten the joint formed by said packing ring, and a second connection member forming a connection with the interior of said internal pipe.

9. In apparatus of the character described, the combination with a supporting member, of an external pipe, an internal pipe within the same, a connection member forming a communication with the interior of said internal pipe, a packing ring abutting against said supporting member and engaging in a recess in said connection member, means f r drawing said connection member towa-d said supporting member to tighten the joint formed by said packing ring, a second connection member engaging in a recess in said first mentioned connection member and forming a joint for said internal pipe, and means for drawing said second connection member toward said support to make said joint tight.

10. In apparatus of the character described, the combination with an external pipe, an internal pipe within the same, a connection member forming a joint with the interior of said external pipe, a second connection member engaging in a recess in said first mentioned connection member,

packings, a communication from said porous material to the external atmosphere, and means for drawing said second connection member toward said supporting member, whereby joints are formed between said first connection member and said internal pipe, and between said internal pipe and said second connection member.

11. In apparatus of the charactende scribed, the combination with a blank external pipe, a blank internal pipe within the same, a connection member forming communication with the interior of said external pipe, means for forming a joint between said connection member and said external pipe, at second connection member engaging in a recess in said first mentioned connection member and forming a joint with said internal pipe, a support for said pipes, and means engaging said support and drawing said connection members toward said support.

12. In apparatus of the character described, the combination with a blank external pipe, a blank internal pipe within the same, a connection member forming communication with the interior of-said external pipe, means for forming a joint between said connection member and said external pipe, a second connection member engaging in a recess in said first mentioned connection member and forming a joint with said internal pipe, a support for said pipes, and means engaging said support and drawing said connection members toward said support for tightening said joints.

13. In apparatus of the character described, the combination with an external pipe, an internal pipe within the same, a connection member forming a connection with the interior of said external pipe, a second connection member forming a connection with the interior of said internal pipe, said second connection member engaging in a recess in said first mentioned connection member, and separated packings in said recess forming respectively joints between said first and second mentioned connection members and said internal pipes.

14. In apparatus of ,the character described, the combination with an external pipe, an internal pipe within the same, a connection member forming a connection with the interior of said external pipe, :1 second connection member forming a connection with the interior of said internal pipe, said second connection member engaging in a recess in said first mentioned connection member, and separated packings in said recess forming respectively joints between said first and second mentioned connection members and said internal pipes, said first mentioned connection member having a perforation t0 the external atmosphere communicating with the space between said separated packings.

In testimony whereof I have hereunto af fixed my signature in the presence of the two subscribing witnesses.

LEOPOLD G. SGIHTEIDER.

Witnesses:

J OHN T. GRIFFINBERG, AMBROSE GRIFFENBERG. 

